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@teiten itatrsstrut @fitte AUGUSTUS E. BIGELOW, OF LAWRENCE, MASSACHUSETTS, ASSIGNQR` TO JOHN KENDRICK AND JOSEPH H. KENDRICK, OF PROVIDENCE, RHODE ISLAND,

Letters Pafent No. 68,832, dated September 17, 1867.

IMPROVEMENT IN MACHINE FOR DRESSING WEAVERS HARNESS.

.lO ALL WHOM IT MAYCONCERN:

Be it known that I, AUGUSTUS E. BIGELOW, of Lawrence, in the' county of Essex, and State of Massachusetts, have invented certain vnew and useful Improvements in Machines for Dressing Weavers Harnesses; and I do hereby declare that the following specification, taken in connection with the drawings, making a part of the same, is a full, clear, and exact description thereof.

Figure 1 isa top view or plan.

Figure 2 is a side View.

Figures 3 and 4 are sectional views to he referred to hereafter.

It is necessary, after a weavers harness has been otherwise completed, to thoroughly fill the twines, ofA which it is composed, with a suitable sizing, and, after this operation has been performed, and the twines have been dried, to varnish such portion of the harness as comes into contact with the warp-threads. Both of these processes are to be accompanied with a brushing operation, which is applied in a manner which will lay the fibres of the twines staight, and render the threads perfectly smooth. Heretofore these operations, which con# stituteV the dressing of the harnesses, have been mainlyperformcd by hand, first upon one and then to the other side of the harness, without the aid of self-acting machinery, capable of performing the labor upon both sides` of the harness at once.`

In the accompanying drawings it will be seen that the various parts of the machine are mounted upon or are attached to a rectangular frame, A.V l

It is not intended in this machine that the harnesses shall be sized and then varnished by a continuous operation, for` lthe reason that after the sizing operation they requireto be dried before they are fit to receive the coating of varnish; but the apparatus for sizingpas -well as that for varnishing them is mounted upon one frame, so as to enable two operators to carry on their respective works at the'same time, and make available,

the endless tenter-hook belt which `sustains and rcarries the harnesses while the respective operations are being performed. 4

` .At-each end of the machine is placed a roller, B, having its axle fitted to bearings in the side rails of the wframe, and around Vthese rollers passtwo 'endless tenter-hook belts or chains C C', appropriato spur-points or teeth being placed in the periphery of one ofthe rollers, which can engage with the links of the chains or holes -in the belts, so as, such r`oller revolves, motion will be given to 'the belts. The endless belts are provided, at

convenient distances apart, with tenter-hooks a a a, by which. the shafts or side slats (around which the twines of the harness areat their ends wound) .are to be supported as fthe harnesses are being dressed. As these endless belts run in guiding channels b b it is easy, by giving divergence at certain points to said channels, to cause the belts to be further separated from each other while the harness is being subjected to the action of the sizing or varnishing brushes, hereafter to be described, than they are at the points where the harness isto be vput on or taken oi the machine, and thus strain the twines of the harness taut while the dressing operations are -being performed.

Motion is communicated to the various moving parts from the shaft D, arranged in this instance parallel with the side rail, but raised above it.` Upon this shaft is a fixed pulley, E,.from which, by meansiof belts C C', a rotary motion is given to a set of revolving brushes, F F', located 'one' above the other; the belt C being connected directly with a pulley upon the axle of the upper brush, and the belt C driving a second pulley, E',

from which a belt communicates motion to a pulley upon the axle of the lower brush. Upon the same -shaftD is another fixed pulley, F, which gives, by means of the belt d, a rotary movement to the transverse shaft F'. This shaft carries a roller, e, covered with'felt, and which works against the face of a similar rolle r,j`, so ,hung

that the face of such roller shall be immersed, as' it revolves, in a vat, g, of varnish. The width of the faces of these rollers should correspond with the width of the portion of the harness to be varnished. A third fixed pulley, G, upon the shaftD, by means of the belth, imparts motion to theshaft H, and the motion which it soy receives is communicated, by means of the toothed v,wheel H1 keyed thereon, to a similar toothed wheel, H3, keyed upon the shaft I. Upon the shafts H and I respectively are mounted cams .I J', the oiiice of which is to ossea 2 control the .position of the faces of the varnishing brushes, presently to be described. K K', fig. 3, are the varnishing brushes. They are arranged so as to be capable ofsliding to and fro upon the transverse rods it', one end of which respectively is pivoted to the frame at jj, and the other ends project so far as to be directly over the faces of the cams J J' respectively, so that such earns as they revolve can raise at stated times the particular rod which they are arranged'to control.` A reciprocating movement is given tothe brushes K K' by means of the links j'j' pivoted respectively at one end to the brush-heads, and connected at the other end with crankpins 7c k set 'in theA faces of the toothed wheels H* H2. The cams J J' are so set upon their shafts that the faces of the brusheswill be in close Contact during their movement in one direction, but will be made to separate from each other during the reverse movement, and this Contact can be eifected by allowing the forward ends of the upper set of rods -z' i to remain at their lowest position while the ends of the lower set of rods are raised to their highest position, and the separation of the faces ofthe brushes can be brought about yby causing the forward ends of the upper set of rods tebe raised by the cam J while the forward ends of the lower set are at their lowest position. By means of the fixed pulley L upon the shaft D andthe belt I motion is given to the pulley L', aroundihe axle of which a belt, nr, passes and gives motion to the rollery B which works the endless tenter-hook belts C C'. l

From the foregoing description it will be understood that the operations of sizing and varnishingr Weavers harnesses can be carried on simultaneously. The operator who attends the sizing apparatus places a harness upon the endless belt C C' so that the tenter-hooks will hold the shafts. As the harness proceeds toward the. revolving brushes F F' it is made to pass between two rollers covered with felt, one of which runs in asize-vat, and which rollers need no particular description, as they are similar in all respects to the rollers ef, previously described and shown in the drawings, for applying lthe varnish to the harnesses. The harnesses, after being sized, pass betweent-he revolving brushes, which effect the uniform distribution ofthe size, and it is then removed from the tenter-hooks.

The operator who attends the varnishing apparatus places in front oftherollers ef a harness upon the endless belt, as before described. After receiving its coat of varnish it is nextbru-shed upgn'both sides, in one direction only, and is then to he removed from the machine. y

What I claim as my invention, and desire to secure by Letters Patent, is- V 1. The combination of an endless tenter-hook belt, C C', with the revolving brushes F F, substantially as described, for the purposes specified. 1

2. The combination, in one machine, of the endless tenter-hook belts C C', orrequivalent means'for'supporting and conveying the harnesses, an apparatus for sizing and an apparatus for varnishing a weaver-s harness, substantially as described, for the purposes specified,

3. rlhe reciprocating brushes K K', when arranged to act upon the, harness, in'the manner and by the means substantially as described.

4. The cornbination of the endless tenter-hook belts with the reciprocating brushes K K', substantially as described.

AUGUSTUS E.- BIGELOW.

Witnesses'. y

H. C. FOWLER, N. G. WHITE. 

